51002050120 has 64 divisors (see below), whose sum is σ = 136850238720. Its totient is φ = 16726136064.

The previous prime is 51002050117. The next prime is 51002050157. The reversal of 51002050120 is 2105020015.

It is a junction number, because it is equal to n+sod(n) for n = 51002050094 and 51002050103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3953347 + ... + 3966226.

It is an arithmetic number, because the mean of its divisors is an integer number (2138284980).

Almost surely, 2^51002050120 is an apocalyptic number.

It is an amenable number.

51002050120 is an abundant number, since it is smaller than the sum of its proper divisors (85848188600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51002050120 is a wasteful number, since it uses less digits than its factorization.

51002050120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919614 (or 7919610 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 51002050120 its reverse (2105020015), we get a palindrome (53107070135).

The spelling of 51002050120 in words is "fifty-one billion, two million, fifty thousand, one hundred twenty".